Origin of strain-induced resonances in flexible terahertz metamaterials
Sun Xiu-Yun1, Zheng Li-Ren2, Li Xiao-Ning1, Xu Hua1, †, , Liang Xian-Ting1, Zhang Xian-Peng2, Lu Yue-Hui2, ‡, , Lee Young-Pak3, Rhee Joo-Yull4, Song Wei-Jie2
       

Dependences of 1 − |Im[χ]| on (a) the detuning frequency and (b) the coupling strength. Inset of panel (a): zoom-in view of the resonant peaks. Inset of panel (b): zoom-in view of the red-shifted resonant peaks with the coupling strength κ increasing, as denoted by the arrow.